Follow the on-screen wizard to create an administrator account and complete the setup. Your Nessus scanner is now successfully activated in offline mode and ready to use.
A valid, unused activation code for Nessus Expert, Professional, or Essentials. Two Machines: The target offline host with Nessus installed.
Now, you need a computer with internet access: nessus offline registration hot
/opt/nessus/sbin/nessus-fetch --offline /opt/nessus/sbin/nessuscli update --plugins-only /path/to/usb/plugins.tar.gz
The resulting confirmation page outputs two critical assets: Follow the on-screen wizard to create an administrator
Before starting the offline registration process, ensure you have the following components ready:
2. Nessus Web UI Stuck on "Initializing" or "Compiling Plugins" Two Machines: The target offline host with Nessus installed
This comprehensive guide walks you through the step-by-step process of offline activation, generating challenge codes, and manually updating your plugins to keep your scanner hot and ready for vulnerability assessments. 🔑 Phase 1: Prerequisites Before You Begin
Choose your Nessus type (e.g., Professional) and click . Copy the Challenge Code that appears on the screen. Method B: Using the Command Line (CLI) Run the following command based on your operating system:
+------------------------+ +-------------------------+ | System A (Offline) | | System B (Online) | | | | | | 1. Generate Challenge | --Transfer--> | 2. Submit Codes | | Code | | 3. Fetch License & | | | <--Transfer-- | Plugin Archive | | 4. Apply License & | | | | Update Plugins | | | +------------------------+ +-------------------------+
To get plugins offline: